PCBA onboard trigger signal type electronic lock

By integrating the electronic lock with onboard trigger signal on the PCBA, the problems of large size and poor waterproof and anti-icing performance of electronic locks are solved, and the charging gun is miniaturized and made more convenient, while improving waterproof and anti-icing performance.

CN224067998UActive Publication Date: 2026-03-31DONGGUAN SOUTHEAST NEW ENERGY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing electronic locks are bulky due to their separate mechanical switch and electronic lock design, making it impossible to make the charging gun smaller and more convenient, and they also have poor waterproof and anti-icing performance.

Method used

It adopts a PCBA-onboard trigger signal design, integrating the unlock signal, mechanical switch signal and lock signal on the PCBA board. It replaces the traditional tactile switch with a translation drive component and spring contact, and combines a waterproof silicone ring to improve waterproof and anti-icing performance.

Benefits of technology

This design achieves a smaller and narrower electronic lock, preventing the unlocking block from jamming, improving the convenience and waterproof and anti-icing performance of the charging gun, and avoiding the problems of high installation accuracy and poor performance caused by the separate design of mechanical switches.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a PCBA onboard trigger signal type electronic lock which comprises an electronic lock bottom shell and an electronic lock top cover fixed to the upper end of the electronic lock bottom shell, a locking button movably penetrates through the right portion of the electronic lock top cover, and springs are connected to the front side and the rear side between the lower end of the locking button and the inner bottom end of the electronic lock bottom shell. According to the PCBA onboard trigger signal type electronic lock, the unlocking signal area, the mechanical switch signal area and the locking signal area are integrally arranged on the PCBA board, and the translation driving assembly, the PCBA board and other components are integrated into a signal switch to be integrally designed in the electronic lock shell, so that the electronic lock is smaller in size and narrower in width; the charging gun body can be made to be smaller and more convenient by replacing a traditional touch switch with contact of the PCBA and the elastic piece, the effects of preventing rain, freezing and sand dust can be achieved in severe weather such as rainy seasons or freezing and the like, and the situation that the locking button and the emergency unlocking button are frozen and cannot be pressed is prevented.
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Description

Technical Field

[0001] This utility model relates to the field of electronic lock technology, and in particular to a PCBA-based trigger signal electronic lock. Background Technology

[0002] With the increasing number of new energy vehicles, in order to ensure the safety of people, vehicles and charging stations during charging, charging guns need to have certain protective functions. To prevent the charging gun from being accidentally disconnected when it is plugged in, an electronic lock is needed.

[0003] Currently, electronic locks on the market are bulky due to their separate mechanical switch and electronic lock design. Since electronic locks need to be installed on the charging guns of new energy vehicles, their large size makes it impossible to make the charging gun body smaller and more convenient. Utility Model Content

[0004] The purpose of this invention is to overcome the defects of the prior art and provide a PCBA-onboard trigger signal type electronic lock to solve the problems mentioned in the background art.

[0005] The PCBA-based trigger signal type electronic lock includes an electronic lock base and an electronic lock top cover fixed on its upper end. A locking button is movably inserted through the right side of the electronic lock top cover. Springs are connected on both sides between the lower end of the locking button and the inner bottom of the electronic lock base. A translation drive assembly is installed on the left side inside the electronic lock base. A switch spring A is fixed on the upper part of the translation drive assembly. A socket terminal is fixed on the lower left side of the electronic lock base. A socket is inserted into the upper part of the socket terminal. A PCBA board is fixed on the upper end of the socket. The PCBA board is fixed to the lower end of the electronic lock top cover. An unlocking signal area is provided on the lower right side of the PCBA board. A locking signal area is provided on the lower right side of the PCBA board and located on the right side of the unlocking signal area. The switch spring A slides in contact with the unlocking signal area and the locking signal area.

[0006] Preferably, a waterproof silicone ring is fitted around the locking button, and the lower end of the waterproof silicone ring is tightly attached to the upper end of the electronic lock top cover.

[0007] Preferably, the translation drive assembly includes a motor, a screw, and an unlocking block. The motor is fixedly installed on the bottom shell of the electronic lock. The screw is connected to the output end of the motor. The unlocking block is slidably connected to the right side inside the bottom shell of the electronic lock. The screw is threadedly connected to the unlocking block. The switch spring A is embedded and fixed on the upper end of the unlocking block.

[0008] Preferably, an emergency unlock button is movably inserted through the right side of the electronic lock's bottom shell, and the left side of the emergency unlock button is connected to the right side of the unlocking block.

[0009] Preferably, the emergency unlock button is fitted with a second waterproof silicone ring, which is embedded and fixed to the bottom shell of the electronic lock.

[0010] Preferably, a mechanical switch signal area is provided at the lower end of the PCBA board and in front of the lock signal area. A switch spring B is provided below the mechanical switch signal area. The first end of the switch spring B is embedded and fixed to the PCBA board, the second end of the switch spring B is connected to the lock button, and the top of the switch spring B is in contact with the mechanical switch signal area.

[0011] The beneficial effects of this utility model are as follows: This PCBA-based trigger signal electronic lock integrates the unlocking signal area, mechanical switch signal area, and locking signal area onto the PCBA board. Furthermore, it integrates the translation drive assembly, PCBA board, and other components into a single design within the electronic lock housing. By using PCBA contact with a spring contact instead of a traditional tactile switch, the electronic lock becomes smaller and narrower, allowing for a smaller and more convenient charging gun. Additionally, if the unlocking block is pressed down and jammed, the translation drive assembly can move the unlocking block to the left to reset it. Furthermore, an emergency unlocking button allows for manual unlocking. Pressing and pushing the unlocking block to the left resets it, serving as an emergency unlocking mechanism. This prevents the unlocking block from jamming when the gun is touched and pulled out. Furthermore, by incorporating waterproof silicone rings one and two, it protects against rain, ice, and dust in severe weather conditions such as rain or freezing. It also prevents the locking and emergency unlocking buttons from freezing and becoming inaccessible. The integrated design improves upon the separate mechanical switch and electronic lock designs found in other products on the market, avoiding issues such as high precision requirements for the electric gun hook installation, deformation and damage to the charging gun hook, and poor waterproof and anti-icing performance that lead to malfunctions in the charging gun. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0013] Figure 2 This utility model Figure 1 A schematic diagram showing the removal of the electronic lock bottom shell and electronic lock top cover;

[0014] Figure 3 This utility model Figure 2 A schematic diagram of the lower end;

[0015] Figure 4 This utility model Figure 1 Main view diagram of the removal of the electronic lock bottom shell and electronic lock top cover;

[0016] Figure 5 This is a schematic diagram of the lower end of the PCBA board of this utility model.

[0017] In the diagram: 1-Electronic lock bottom shell, 2-Electronic lock top cover, 3-Lock button, 4-Waterproof silicone ring one, 5-Emergency unlock button, 6-Waterproof silicone ring two, 7-Socket terminal, 8-PCBA board, 9-Socket, 10-Motor, 11-Screw, 12-Unlock block, 13-Switch spring A, 14-Unlock signal area, 15-Switch spring B, 16-Mechanical switch signal area, 17-Spring, 18-Lock signal area. Detailed Implementation

[0018] Please see Figures 1-5 A PCBA-based trigger signal type electronic lock includes an electronic lock base shell 1 and an electronic lock top cover 2 fixed to its upper end. A locking button 3 is movably inserted through the right side of the electronic lock top cover 2. Springs 17 are connected on both sides of the lower end of the locking button 3 and the inner bottom end of the electronic lock base shell 1. A translation drive assembly is installed on the left side inside the electronic lock base shell 1. A switch spring A13 is fixed to the upper part of the translation drive assembly. The translation drive assembly includes a motor 10, a screw 11, and an unlocking block 12. The motor 10 and... The electronic lock base shell 1 is fixedly installed. The screw 11 is connected to the output end of the motor 10. The unlocking block 12 is slidably connected to the right side inside the electronic lock base shell 1. The screw 11 and the unlocking block 12 are threadedly connected. The switch spring A13 is embedded and fixed on the upper end of the unlocking block 12. The motor 10 can drive the screw 11 to rotate. As the screw 11 and the unlocking block 12 are threadedly engaged, the unlocking block 12 can move left and right inside the electronic lock base shell 1. At the same time, the unlocking block 12 drives the switch spring A13 to move left and right.

[0019] An emergency unlock button 5 is movably inserted through the right side of the electronic lock bottom shell 1. The left side of the emergency unlock button 5 is connected to the right side of the unlocking block 12. When the unlocking block 12 moves left and right, it can also drive the emergency unlock button 5 to move left and right at the same time. By pressing the emergency unlock button 5, the unlocking block 12 can be pushed to the left, and the screw 11 can rotate at this time.

[0020] A socket terminal 7 is fixed to the lower left side of the electronic lock base 1. A socket 9 is inserted into the upper part of the socket terminal 7. A PCBA board 8 is fixed to the upper end of the socket 9. The PCBA board 8 is fixed to the lower end of the electronic lock top cover 2. An unlocking signal area 14 is provided on the lower right side of the PCBA board 8. A locking signal area 18 is provided on the lower end of the PCBA board 8 and to the right of the unlocking signal area 14. The switch spring A13 slides in contact with the unlocking signal area 14 and the locking signal area 18. When locking, the motor 10 drives the screw 11 to push the unlocking block 1 to the right. 2. When the switch spring A13 embedded in the unlocking block 12 moves to the locking signal area 18 and sends a locking signal, the unlocking block 12 is driven to move below the locking button 3 and lock, so that the locking button 3 cannot be pressed down. When unlocking, the motor 10 drives the screw 11 to retract the unlocking block 12 in the opposite direction. When the switch spring A13 embedded in the unlocking block 12 moves to the unlocking signal area 14 and sends an unlocking signal, the unlocking block 12 disengages from the locking button 3, so that the locking button 3 can be pressed down to complete the unlocking. At the same time, the unlocking button of the charging gun can move up and down freely to send a signal.

[0021] A mechanical switch signal area 16 is located at the lower end of the PCBA board 8 and in front of the lock signal area 18. A switch spring B15 is located below the mechanical switch signal area 16. The first end of the switch spring B15 is embedded and fixed to the PCBA board 8, and the second end of the switch spring B15 is connected to the lock button 3. The top of the switch spring B15 contacts the mechanical switch signal area 16. When the lock button 3 cannot be pressed down, it pushes the switch spring B15 upwards, making it tightly press against the mechanical switch signal area 16, maintaining the mechanical switch signal emitted by the mechanical switch signal area 16. When the unlock button of the charging gun is pressed, causing the lock button 3 to be pressed, the switch spring B15 will separate from the mechanical switch signal area 16, disconnecting the signal. This integrates the unlock signal area 14, the mechanical switch signal area 16, and the lock signal area 18. The translation drive assembly and PCBA board 8 are integrated into the electronic lock housing, making the electronic lock smaller and narrower. This allows for a smaller and more convenient charging gun. In the event that the unlocking block 12 is pressed down and jammed, the translation drive assembly can move the unlocking block 12 to the left to reset it. An emergency unlocking button 5 can be manually pressed and pushed to move the unlocking block 12 to the left to reset it, serving as an emergency unlocking function. This prevents the unlocking block 12 from jamming when the gun is touched and pulled out. The integrated design improves upon the separate mechanical switch and electronic lock design in the market. Furthermore, by using PCBA and spring contact instead of traditional tactile switches, it avoids problems such as high installation accuracy requirements for the electric gun hook, deformation and damage to the charging gun hook, and poor waterproof and anti-icing performance that lead to malfunctions of the charging gun.

[0022] The locking button 3 is fitted with a waterproof silicone ring 4, the lower end of which is tightly attached to the upper end of the electronic lock top cover 2. The emergency unlocking button 5 is fitted with a waterproof silicone ring 6, which is embedded and fixed to the bottom shell 1 of the electronic lock. By setting the waterproof silicone rings 4 and 6, the locking button 3 and the emergency unlocking button 5 can be protected from rain, ice, and dust in rainy or freezing weather, and can also prevent the locking button 3 and the emergency unlocking button 5 from freezing and becoming unpressable.

Claims

1. A PCBA on-board trigger signal type electronic lock, comprising an electronic lock bottom shell (1) and an electronic lock top cover (2) fixed at the upper end thereof, characterized in that: the right part of the electronic lock top cover (2) is movably penetrated by a locking button (3), spring (17) is connected between the lower end of the locking button (3) and the inner bottom end of the electronic lock bottom shell (1) on both sides, a translation driving assembly is installed on the left side of the inner part of the electronic lock bottom shell (1), a switch reed A (13) is fixed on the upper part of the translation driving assembly, a socket terminal (7) is fixed on the left side of the lower end of the electronic lock bottom shell (1), a socket (9) is inserted on the upper part of the socket terminal (7), a PCBA board (8) is fixed on the lower end of the electronic lock top cover (2), an unlocking signal area (14) is arranged on the right side of the lower end of the PCBA board (8), a locking signal area (18) is arranged on the right side of the lower end of the PCBA board (8) and located in the unlocking signal area (14), the switch reed A (13) is in sliding contact with the unlocking signal area (14) and the locking signal area (18).

2. The PCBA on-board trigger signal electronic lock according to claim 1, characterized in that: The locking button (3) is externally sleeved with a waterproof silica gel ring I (4), and the lower end of the waterproof silica gel ring I (4) is tightly attached to the upper end of the electronic lock top cover (2).

3. The PCBA on-board trigger signal electronic lock according to claim 1, characterized in that: The translation driving assembly comprises a motor (10), a screw rod (11) and an unlocking block (12), the motor (10) is fixedly installed with the electronic lock bottom shell (1), the screw rod (11) is connected to the output end of the motor (10), the unlocking block (12) is slidingly connected to the right side of the inner part of the electronic lock bottom shell (1), the screw rod (11) is threadedly connected with the unlocking block (12), and the switch reed A (13) is inlaidly fixed on the upper end of the unlocking block (12).

4. The PCBA on-board triggered signal electronic lock according to claim 3, characterized in that: The right part of the electronic lock bottom shell (1) is movably penetrated by an emergency unlocking button (5), and the left part of the emergency unlocking button (5) is connected with the right part of the unlocking block (12).

5. The PCBA on-board trigger signal electronic lock according to claim 4, characterized in that: The emergency unlocking button (5) is externally sleeved with a waterproof silica gel ring II (6), and the waterproof silica gel ring II (6) is embeddedly fixed with the electronic lock bottom shell (1).

6. The PCBA on-board trigger signal electronic lock of claim 1, wherein: A mechanical switch signal area (16) is arranged on the lower end of the PCBA board (8) and located in front of the locking signal area (18), a switch reed B (15) is arranged below the mechanical switch signal area (16), the switch reed B (15) is inlaidly fixed with the PCBA board (8) at the first end thereof, the switch reed B (15) is connected with the locking button (3) at the tail end thereof, and the switch reed B (15) is in contact with the mechanical switch signal area (16) at the top thereof.